Question

Without actually calculating cubes,find the value of (-11)cube+7cube+4cube

Answer 1

Answer :

-924

Explanation:

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If x+y+z=0 then

x³+y³+z³ = 3xyz

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Here ,

x=-11, y = 7 , z = 4

Now,

x+y+z = -11+7+4 = 0

Therefore,

x³+y³+z³

= (-11)³+7³+4³

= 3×(-11)(7)(4)

= -924

••••

Answer 2

Answer:

-(11)cube + 7cube+ 4cube=

-1331+343+64= -927